configure.ac:10: installing './compile'
configure.ac:2: installing './install-sh'
configure.ac:2: installing './missing'
src/Makefile.am: installing './depcomp'
configure.ac:23: error: possibly undefined macro: AC_SUBST
      If this token and others are legitimate, please use m4_pattern_allow.
      See the Autoconf documentation.
configure.ac:24: error: possibly undefined macro: AC_MSG_ERROR